The secret within
APA
Davis, S. (2011). The secret within. Perimeter Institute. https://pirsa.org/11040090
MLA
Davis, Seamus. The secret within. Perimeter Institute, Apr. 26, 2011, https://pirsa.org/11040090
BibTex
@misc{ pirsa_PIRSA:11040090, doi = {10.48660/11040090}, url = {https://pirsa.org/11040090}, author = {Davis, Seamus}, keywords = {Condensed Matter}, language = {en}, title = {The secret within}, publisher = {Perimeter Institute}, year = {2011}, month = {apr}, note = {PIRSA:11040090 see, \url{https://pirsa.org}} }
Cornell University
Talk Type
Subject
Abstract
Direct visualization of the electronic structure within each crystalline unit cell of a solid is a new frontier in condensed matter physics (M.J.
Lawler et al, Nature 466, 347 (2010)). In this talk, I will introduce the
techniques of spectroscopic imaging scanning tunneling microscopy (SI-ÃÂâÂÂSTM) and then explain how our new application of this technique allows
visualization of the intra-ÃÂâÂÂunit-ÃÂâÂÂcell electronic structure. We use this
approach to study the pseudogap phase of cuprate high temperature superconductors. Recent experiments provide evidence that this phase may
be associated with spontaneously broken electronic symmetries. By studying
the Bragg peaks in Fourier transforms of SI-ÃÂ-STM images, and in particular
by resolving both the real and imaginary components of these Bragg amplitudes (as opposed to the Bragg intensities without phase information
which are the observables in scattering experiments), we reveal the intra-ÃÂâÂÂunit-ÃÂâÂÂcell broken electronic symmetries of the cuprate pseudogap phase
(J.P.Hinton et al, Science (2011)).